	.a{
			border: 1px solid red;
		}
		.b{
			background-color:#393D49;
			width: 200px;
			height: 100%;
		}
		.aaa{
			padding: 0px;
			margin: 0px;
			width: 100%;
			height: 100%;
			}
			.layui-tab-item iframe{
				margin: 0px;
				width: 100%;
				height: 100%;
				border: none;
			}
			.layui-tab-brief{
				padding: 0px;
				margin: 0px;
			}
			.layui-tab-content{
				padding: 0px;
				margin: 0px;
			}